Controls for applying a gradient filter have disappeared

[MikeHarrison]

I've been using the Smooth Linear and Linear Gradient Core Image filters for years but, all of a sudden, the controls for both of them no longer appear. The controls appear for the Gaussian and Radio gradients, but not the Smooth Linear or Linear gradients.

[forum_adm]

Do you use the current version 12.5.2?
I see all controls:

Bildschirmfoto 2026-05-30 um 08.02.54.jpg (209.38 KiB) Viewed 6950 times

[MikeHarrison]

Yes, I am using 12.5.2. As I said, I had been using the Smooth Linear and Linear Gradients for years. To be clear, the controls for Gaussian and Radial gradients are visible but, when I click either Smooth Linear or Linear gradients, the controls disappear. See attachments.

[forum_adm]

Thanks for the screenshots.

Did you try to reboot your system?
Did you try to delete the GraphicConverter settings with our First Aid Tool?

[MikeHarrison]

Thank you. Yes, I have rebooted the system, and I had also re-installed GC. But I didn't know there was a first aid tool. If I use it, will my preferences be lost? Where can I find the first aid tool?

[forum_adm]

You find it at the bottom of our download page:

https://www.lemkesoft.de/en/products/gr ... r/download

[MikeHarrison]

Thank you Thorsten.

If I use the First Aid tool, will my existing preferences be lost?

[forum_adm]

Yes, simple make a backup first with the menu GraphicConverter 12 > Backup…

[MikeHarrison]

Thank you!

[MikeHarrison]

I backed-up my settings and ran the First Aid app. The controls for Linear Gradient have returned, but those for Smooth Linear Gradient have not. Very puzzling.